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diff --git a/inc/resource/resource_infrared_motion_sensor.h b/inc/resource/resource_infrared_motion_sensor.h
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+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __POSITION_FINDER_RESOURCE_INFRARED_MOTION_SENSOR_H__
+#define __POSITION_FINDER_RESOURCE_INFRARED_MOTION_SENSOR_H__
+
+/**
+ * @brief Reads the value of gpio connected infrared motion sensor(HC-SR501).
+ * @param[in] pin_num The number of the gpio pin connected to the infrared motion sensor
+ * @param[out] out_value The value of the gpio (zero or non-zero)
+ * @return 0 on success, otherwise a negative error value
+ * @see If the gpio pin is not open, creates gpio handle before reading the value of gpio.
+ */
+extern int resource_read_infrared_motion_sensor(int pin_num, uint32_t *out_value);
+
+/**
+ * @brief Releases the gpio handle and changes the gpio pin state to the close(0).
+ * @param[in] pin_num The number of the gpio pin connected to the infrared motion sensor
+ */
+extern void resource_close_infrared_motion_sensor(void);
+
+#endif /* __POSITION_FINDER_RESOURCE_INFRARED_MOTION_SENSOR_H__ */